Sure, if you have 3ds and you don't mind it looking a bit computer generated, that's fine.

The easiest way for me to give the brush is to just describe the settings I have on each brush option per tab:

Brush Tip Shape:
-Diameter: 30px (this is set up to default for a 5000px canvas, you can adjust this to your preference, even after this is complete)
-Angle: 30
-Roundness: 80%
-Hardness:66%
-Spacing:1000%

What are some good resolution independent techniques to produce nice star fields?

I do them one by one, using the brush. I start with a white (yellowish, bluish, never totally white) point and paint over it twice or thrice, making the brush bigger and using very low opacities (20% or less) in the second and third paintings. It doesn't look bad, but it doesn't look exactly good either. It's very good for big stars, but the smaller ones look way too shiny with this method.